Jonas_Jones/multimodal_parliament_explorer_05_1
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added support for bulk speech export from Speaker

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This commit is contained in:
s5260822 2025-03-22 22:01:31 +01:00
parent 704d71dd75
commit 8d00ef14d4
3 changed files with 81 additions and 5 deletions
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40
src/main/java/org/texttechnologylab/project/gruppe_05_1/export/TeXUtil.java
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@ -15,14 +15,29 @@ import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Arrays;
import java.util.Base64;
import java.util.List;
import static org.texttechnologylab.project.gruppe_05_1.Main.RESOURCES_DIR;
import static org.texttechnologylab.project.gruppe_05_1.Main.TEMP_EXPORT_DIR;
import static org.texttechnologylab.project.gruppe_05_1.database.MongoPprUtils.*;
public class TeXUtil {
private static String BEGIN_DOCUMENT = "\\begin{document}";
private static String END_DOCUMENT = "\\end{document}";
private static final String PREAMBLE = readFileContentFromTeXDir();
private static final String BEGIN_DOCUMENT = "\\begin{document}\n";
private static final String END_DOCUMENT = "\\end{document}";
private static final String TABLEOFCONTENTS = "\\tableofcontents\n\\newpage\n";
private static final String NEWPAGE = "\\newpage\n";
private static String readFileContentFromTeXDir() {
try {
return Files.readString(new File(RESOURCES_DIR, "tex/preamble.tex").toPath());
} catch (IOException e) {
Logger.error("Failed to read file content from tex directory.");
Logger.error(e.getMessage());
Logger.debug(Arrays.toString(e.getStackTrace()));
return "";
}
}
public static String getSpeechToTexComponent(String speechId) {
createTempDir();
@ -44,8 +59,25 @@ public class TeXUtil {
public static String getExportedSpeechBase64StringBySpeechId(String speechId) throws IOException, InterruptedException {
// Read preamble from resources directory tex/preamble.tex
String preamble = Files.readString(new File(RESOURCES_DIR, "tex/preamble.tex").toPath()).replace("$$EXPORTCATEGORY$$", "Speech " + speechId);
return convertTexToBase64PDF(preamble + BEGIN_DOCUMENT + getSpeechToTexComponent(speechId) + END_DOCUMENT);
return convertTexToBase64PDF(PREAMBLE.replace("$$EXPORTCATEGORY$$", "Speech " + speechId) + BEGIN_DOCUMENT + getSpeechToTexComponent(speechId) + END_DOCUMENT);
}
public static String getBulkExportedSpeechBase64StringFromSpeakerById(String speakerId) throws IOException, InterruptedException {
// Fetch all speechIDs from the speaker
List<String> speechIds = getSpeechIdsBySpeakerId(speakerId);
StringBuilder tex = new StringBuilder();
tex.append(PREAMBLE.replace("$$EXPORTCATEGORY$$", "Speaker ID" + speakerId));
tex.append(BEGIN_DOCUMENT);
tex.append(TABLEOFCONTENTS);
for (String speechId : speechIds) {
tex.append(getSpeechToTexComponent(speechId));
tex.append(NEWPAGE);
}
tex.append(END_DOCUMENT);
return convertTexToBase64PDF(tex.toString());
}
public static String convertTexToBase64PDF(String tex) throws IOException, InterruptedException {

2
src/main/java/org/texttechnologylab/project/gruppe_05_1/rest/RESTHandler.java
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@ -67,7 +67,7 @@ public class RESTHandler {
app.get("/reden", SpeechController::listAllSpeeches); // zeige alle Reden an (Filtern möglich)
app.get("/export/speech/{id}", SpeechesExportController::exportSpeech); // exportiere eine Rede als PDF
//app.get("/portfolio/{id}/export", SpeechesExportController::exportSpeechesFromParlamentarier); // exportiere alle Reden eines Parlamentariers als PDF
app.get("/export/speaker/{id}", SpeechesExportController::exportSpeechesFromSpeaker); // exportiere alle Reden eines Parlamentariers als PDF
//app.get("/topic/{topic}/export", SpeechesExportController::exportSpeechesWithTopic); // exportiere alle Reden zu einem Thema als PDF
}
}

44
src/main/java/org/texttechnologylab/project/gruppe_05_1/rest/SpeechesExportController.java
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@ -56,4 +56,48 @@ public class SpeechesExportController {
Logger.debug(Arrays.toString(e.getStackTrace()));
}
}
@OpenApi(
summary = "Get all speeches from a speaker as a PDF",
description = "Returns a LaTeX generated pdf of all speaches of a selected speech",
operationId = "getSpeechesFromSpeakerExport",
path = "/export/speaker/{id}",
methods = HttpMethod.GET,
tags = {"Export", "Speeches", "PDF"},
responses = {
@OpenApiResponse(status = "200")
})
public static void exportSpeechesFromSpeaker(Context ctx) {
byte[] pdfBytes = new byte[0];
try {
pdfBytes = Base64.getDecoder().decode(getBulkExportedSpeechBase64StringFromSpeakerById(ctx.pathParam("id")));
} catch (Exception e) {
Logger.error("Failed to generate Export of Speeches from Speaker with ID " + ctx.pathParam("id"));
Logger.error(e.getMessage());
Logger.debug(Arrays.toString(e.getStackTrace()));
}
// Set the response content type to PDF
ctx.contentType("application/pdf");
ByteArrayInputStream stream = new ByteArrayInputStream(pdfBytes);
if (stream.available() == 0) {
Logger.error("PDF stream is empty.");
ctx.result("Internal Server Error");
ctx.status(500);
return;
}
// Send the PDF as a response
ctx.result(stream);
try {
// delete the temporary folder
deleteTeXTempDirContents();
Logger.debug("Temporary folder deleted.");
} catch (IOException e) {
Logger.error("Failed to delete temporary folder.");
Logger.error(e.getMessage());
Logger.debug(Arrays.toString(e.getStackTrace()));
}
}
}